UI Post-UTME Mathematics 2023 (Model questions) Question 8

Question 8

Angles and Polygons

What is the sum of the interior angles of a polygon with 12 sides

  1. A.1440°
  2. B.1620°
  3. C.1800°
  4. D.1980°
Show the answer and explanation

Answer: C (1800°)

Explanation

Sum = (n − 2) × 180° = 10 × 180° = 1800°.